The web server in Aternity before 9.0.1 does not require authentication for getMBeansFromURL loading of Java MBeans, which allows remote attackers to execute arbitrary Java code by registering MBeans.
Severity
CVSS 3.0
9.8 critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
3.9% chance of exploitation in the next 30 days; higher than 90% of CVEs (scores of 2026-10-31)